In which case you should use the one that is highest in the "Support File Search Path" list, or use any one and move the directory that it is in to the top of the "Support File Search Path" list (see below). You might have more than one acad.pat file (or more than one acadiso.pat, aclt.pat, acltiso.pat file). This will give you the locations of your hatch files. Select "My Computer" from the "Look in:" list. Search for them in Windows Explorer by hitting the "Search" button, selecting "All files and folders", then entering *.pat in the file name search box. If the hatch files are not in this directory (by default they will be) then you will need to search for them. This might be different on your system, but the directory structure will be the same.) (The above example shows the drive letter "c:\".
This will make the "Application Data" directory visible, and allow you to locate the. Under "Advanced Settings: Hidden files and folders" select "Show hidden files and folders" then hit "OK". To make it visible, go into Windows Explorer (for Windows XP: start > All Programs > Accessories > Windows Explorer) then browse to the c:\Documents and Settings\(your username)\ directory.
The "Application Data" directory is a hidden one, and might not be visible on your system. Typically you will find the hatch files in this directory (folder):Ĭ:\Documents and Settings\(your username)\Application Data\Autodesk\(AutoCAD or LT version)\enu\support Hatch pattern files (.pat) are just ordinary text files consisting mainly of numbers, which is the code AutoCAD uses to draw the hatches. The patterns in both files are the same except for the dimensions used.
acad.pat contains the hatch patterns used in imperial drawings, and acadiso.pat contains the hatch patterns used in metric drawings. The standard AutoCAD hatch files are acad.pat and acadiso.pat (aclt.pat and acltiso.pat for LT). You need to locate your existing two standard AutoCAD (or LT) hatch files, open them in a text editor, then copy the hatch pattern code from my file (hatch_pattern_code.txt) into them. You will then see the new hatch patterns alongside the standard AutoCAD patterns in the "Other Predefined" tab when using the BHATCH command. Make sure there is a carriage return at the end of the last line. For newer versions of AutoCAD please use this tutorial for help with installing hatch patternsįor AutoCAD 2009, 2008, 2007, 2006, 2005, 2004 LT 2009, 2008, 2007, 2006, 2005, 2004Ĭopy and paste the entire contents of my file hatch_pattern_code.txt into your acad.pat hatch file and your acadiso.pat hatch file (aclt.pat and acltiso.pat hatch files for LT).
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